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Home >> GMC >> 1997 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Engine Mechanical - 4.3L V6 - VIN W & ,X) >> Overhaul >> Cylinder Head >> Valve Springs

Valve Springs

WARNING: This page does not describe the selected car, but rather 24 other vehicles, including the 1997 Oldsmobile Bravada, 1997 GMC Sonoma, 1997 GMC Savana, 1997 GMC Safari, and 1997 GMC Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Measure valve spring free length, installed height and pressure (tension). Replace valve spring if measurement is not within specification. See VALVES & VALVE SPRINGS  table under ENGINE SPECIFICATIONS.
  2. Measure installed height between cylinder head spring seat (or top of shim, if shimmed) and top of spring shield. If installed height exceeds specification, install shims as necessary to bring installed height to specification.
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